<template>
  <div class="upload-container">
    <el-button
      :style="{background:color,borderColor:color}"
      icon="el-icon-upload"
      size="mini"
      type="primary"
      @click="dialogVisible=true"
    >上传图片</el-button>
    <el-dialog :visible.sync="dialogVisible" :modal="false">
      <el-upload
        :multiple="true"
        :file-list="fileList"
        :show-file-list="true"
        :on-remove="handleRemove"
        :before-upload="beforeUpload"
        :http-request="Upload"
        class="editor-slide-upload"
        action="string"
        list-type="picture-card"
      >
        <el-button type="primary">点击 上传</el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">取消</el-button>
      <el-button type="primary" @click="handleSubmit">确定</el-button>
    </el-dialog>
  </div>
</template>

<script>
// import { getToken } from 'api/qiniu'
import OSS from 'ali-oss';
const client = new OSS({
  region: 'oss-cn-shanghai',
  accessKeyId: 'LTAIxZYjNPM6pgO3',
  accessKeySecret: '11iG8LcwySD1Ryw8aT1PVrQitMNYUl',
  bucket: 'syg-photo'
})
export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    },
    photoSize: {
      type: Number,
      default: 500
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      fileList: []
    }
  },
  methods: {
    Upload(file) {
      const fileTypeErrorTips = file.file.type.includes('image')
      if (!fileTypeErrorTips) {
        this.$message.error('不能传递非图片类型文件')
        return false
      }
      if (file.file.size / 1024 > this.photoSize) {
        this.$message.error(`请上传不大于${this.photoSize}KB的图片文件`)
        return false
      }
      const that = this
      let uid = file.file.uid
      let sourceFileName =
        'photo-' + file.file.name + '-' + Date.parse(new Date())
      client
        .put(sourceFileName, file.file)
        .then(res => {
          that.$message('成功添加图片')
          const objKeyArr = Object.keys(that.listObj)
          for (let i = 0, len = objKeyArr.length; i < len; i++) {
            console.log(that.listObj[objKeyArr[i]].uid, uid)
            if (that.listObj[objKeyArr[i]].uid === uid) {
              that.listObj[objKeyArr[i]].url = res.url
              that.listObj[objKeyArr[i]].hasSuccess = true
              return;
            }
          }
        })
        .catch(() => {
          that.$message.error('本次上传图片失败')
        })
    },
    checkAllSuccess() {
      return Object.keys(this.listObj).every(
        item => this.listObj[item].hasSuccess
      )
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map(v => this.listObj[v])
      if (!this.checkAllSuccess()) {
        this.$message(
          'Please wait for all images to be uploaded successfully. If there is a network problem, please refresh the page and upload again!'
        )
        return;
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return;
        }
      }
    },
    beforeUpload(file) {
      const _self = this
      const _URL = window.URL || window.webkitURL
      const fileName = file.uid
      this.listObj[fileName] = {}
      return new Promise((resolve, reject) => {
        const img = new Image()
        img.src = _URL.createObjectURL(file)
        img.onload = function() {
          _self.listObj[fileName] = {
            hasSuccess: false,
            uid: file.uid,
            width: this.width,
            height: this.height
          }
        };
        resolve(true)
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.editor-slide-upload {
  margin-bottom: 20px;
  /deep/ .el-upload--picture-card {
    width: 100%;
  }
}
</style>
